<div class="mx-auto col-12 col-md-10 col-lg-8 col-xxl-6">
    <div class="card">
        <div class="card-header fw-medium">结果</div>
        <div class="card-body px-0" id="resultTable">
            <p class="text-center">计时：<span id="submit_timer">0</span>秒</p>
        </div>
    </div>
</div>